<template>
  <header class="header">
    <h1>todos</h1>
    <input id="toggle-all" class="toggle-all" type="checkbox" v-model="isAl" />
    <label for="toggle-all"></label>
    <input
      class="new-todo"
      @keyup.enter="addFn"
      v-model="todoname"
      placeholder="输入任务名称-回车确认"
      autofocus
    />
  </header>
</template>

<script>
export default {
  props: ["arr"],
  data() {
    return {
      todoname: "",
    };
  },
  computed: {
    isAl: {
      set(val) {
        this.arr.forEach((obj) => (obj.isDone = val));
      },
      get() {
        return this.arr.every((obj) => obj.isDone === true);
      },
    },
  },
  methods: {
    addFn() {
      this.$emit("getname", this.todoname);
      this.todoname = "";
    },
  },
};
</script>